I guess a lot of it may depend on your weather when riding. I picked up a textile jacket that is waterproof and also splurged on a leather jacket I couldn't resist. However, so far, it has been pretty warm here so have not had the leather out much even tho it has arm venting. The textile is good in terms of venting in the rib area and in the arms so even on fairly hot days, it's been nice. The leather's been closeted more often but fall is here....so maybe it'll be out more soon. Doesn't it rain a lot in the U.K. at times? You can w-proof a leather to a point but it gets soggy and heavy after a steady rain - at least anything leather I have does so I'll assume the jacket will too. The textiles I've seen come w-proof or not (but some come with a w-proof removable liner too). Oh, my leather jacket is heavier than the textile one and the cut is similar if that makes a diff. But buds that have seen the jackets like the leather one more in terms of appearance.
I have read that leather definitely protects the best if you're grounded and sliding

but hopefully none of us will ever have to confirm that firsthand. However, I did have a friend blast thru a car windshield in his textile jacket and the only thing to show on the jacket were just a couple of small scratches (and he was okay too) and his jacket is still in operation.
Hope that helped a bit.
Ya right,

there are only 2 kinds of bikes: It's a Ninja... look that one's a Harley... oh there's a Ninja... Harley...Ninja...
[img]http://i79.photobucket.com/albums/j135/KarateChick_2006/IMG_1245_1.jpg[/img]